Note 7 - Revolving Lines Of Credit And Long-Term Debt (Detail) (USD $)	8 Months Ended
	Feb. 28, 2012	Jun. 30, 2012
Line of Credit Facility, Remaining Borrowing Capacity (in Dollars)		$ 30,000,000
Debt Instrument, Basis Spread on Variable Rate		0.25%
Debt Instrument, Periodic Payment (in Dollars)	10,000
Debt Instrument, Interest Rate, Stated Percentage	7.76%
Canada [Member]
Line of Credit Facility, Remaining Borrowing Capacity (in Dollars)		$ 5,000,000
United States [Member] | Lower Limit [Member]
Debt Instrument, Basis Spread on Variable Rate		1.75%
United States [Member] | Upper Limit [Member]
Debt Instrument, Basis Spread on Variable Rate		2.15%
Canada [Member]
Debt Instrument, Basis Spread on Variable Rate		2.00%